text: // 3.exercise.03.cpp
  //
  // Write a program that doesn't do anything, but declares a number of variables
  // with legal and ilegal names (such as int double = 0;), so that you can see
  // how the compiler reacts.
  
  #include "std_lib_facilities.h"
  
  int main()
  {
      int double;
      double delete;
      char _wtf;
      bool 3isfalse;
      // Contrary to statements on section 3.7 (Names) the use of '$' in a name
      // seems to work, at least on MSVC and GNUCC (an extension?). It's true
      // that according to the ISO Standard it's not a valid character.
      string I_want$s {"Hola"};
      cout << I_want$s << '\n';
      int uno y dos;
  }
  